[PATCH 2/4] si2157: Add option for not downloading firmware.

Gon Solo
2019-10-10T09:51:39Z

While at it, convert to kernel-doc format and use bits instead of bools.

Signed-off-by: Gon Solo <gonsolo@gmail.com>
---
drivers/media/tuners/si2157.c | 6 ++++++
drivers/media/tuners/si2157.h | 33 +++++++++++++++++-------------
drivers/media/tuners/si2157_priv.h | 5 +++--
3 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index e87040d6eca7..898e0f9f8b70 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -118,6 +118,11 @@ static int si2157_init(struct dvb_frontend *fe)
goto err;
}

+ if (dev->dont_load_firmware) {
+ dev_info(&client->dev, "device is buggy, skipping firmware download\n");
+ goto skip_fw_download;
+ }
+
/* query chip revision */
memcpy(cmd.args, "\x02", 1);
cmd.wlen = 1;
@@ -440,6 +445,7 @@ static int si2157_probe(struct i2c_client *client,
i2c_set_clientdata(client, dev);
dev->fe = cfg->fe;
dev->inversion = cfg->inversion;
+ dev->dont_load_firmware = cfg->dont_load_firmware;
dev->if_port = cfg->if_port;
dev->chiptype = (u8)id->driver_data;
dev->if_frequency = 5000000; /* default value of property 0x0706 */
diff --git a/drivers/media/tuners/si2157.h b/drivers/media/tuners/si2157.h
index c22ca784f43f..ffdece3c2eaa 100644
--- a/drivers/media/tuners/si2157.h
+++ b/drivers/media/tuners/si2157.h
@@ -11,29 +11,34 @@
#include <media/media-device.h>
#include <media/dvb_frontend.h>

-/*
- * I2C address
- * 0x60
+/**
+ * struct si2157_config - configuration parameters for si2157
+ *
+ * @fe:
+ * frontend returned by driver
+ * @mdev:
+ * media device returned by driver
+ * @inversion:
+ * spectral inversion
+ * @dont_load_firmware:
+ * Instead of uploading a new firmware, use the existing one
+ * @if_port:
+ * Port selection
+ * Select the RF interface to use (pins 9+11 or 12+13)
+ *
+ * Note:
+ * The I2C address of this demod is 0x60.
*/
struct si2157_config {
- /*
- * frontend
- */
struct dvb_frontend *fe;

#if defined(CONFIG_MEDIA_CONTROLLER)
struct media_device *mdev;
#endif

- /*
- * Spectral Inversion
- */
- bool inversion;
+ unsigned int inversion:1;
+ unsigned int dont_load_firmware:1;

- /*
- * Port selection
- * Select the RF interface to use (pins 9+11 or 12+13)
- */
u8 if_port;
};

diff --git a/drivers/media/tuners/si2157_priv.h b/drivers/media/tuners/si2157_priv.h
index 2bda903358da..778f81b39996 100644
--- a/drivers/media/tuners/si2157_priv.h
+++ b/drivers/media/tuners/si2157_priv.h
@@ -23,8 +23,9 @@ enum si2157_pads {
struct si2157_dev {
struct mutex i2c_mutex;
struct dvb_frontend *fe;
- bool active;
- bool inversion;
+ unsigned int active:1;
+ unsigned int inversion:1;
+ unsigned int dont_load_firmware:1;
u8 chiptype;
u8 if_port;
u32 if_frequency;
--
2.20.1